thomas_cho said:With the 2007 group being introduced, there are some bargains to be had with the 2006 group.
I am considering installing a 2006 campag crankset with my Shimano drive train. Will there be any compatibility issues?
Also with the Campag bottom bracket, can I use the same ISIS/Octalink tool to install the BB?
What is the performance of the Campag 2006 in relation to the Shimano Octalinks?
There isn't a compatibility issue, per se ... you may have to adjust the front derailleur's stops ... maybe, not.
The advantage of the Campagnolo RECORD cranks is one of cosmetics ...
The disadvantage is the 135BCD (Campagnolo) vs. 130BCD (Shimano) in that there are fewer replacement chainrings available for 135BCD cranks; and, you can get (if needed/wanted) a 38t 130BCD chainring.
I love the Octalink BB; but, that is a lingering fondness because I was elated when I found I could install a Shimano ROAD Octalink on an existing XTR BB that I had (the XT/LX Octalink interface is different) ... I theoretically have four spindle lengths available -- 109.5mm, 112.5mm, 116mm, 118mm -- so I could theoretically fit any crank type to any frame type.
The Campagnolo BB bearings are replaceable, but it is currently less expensive to buy a USED Campagnolo on eBay than to replace the bearings. I bought ONE bearing, and it cost about $20US. Replacing all three would have been about $60US ... a used BB would be less; and, a Chorus BB would be about the same as three new bearings. You do the math.
Some say that there is less friction/resistance with the Campagnolo ball bearings than with the Shimano bearings. A lot of the resistance in the Shimano cartridge bottom brackets is, I think, from the seal (that black plastic collar on each end).
If you are thinking of a carbon fiber crankset, then I think you may as well get a Campagnolo Ultra Torque or an FSA MegaExo carbon crankset ... these have different size ID bearings (25mm & 24mm, respectively, as I recall ... the former is compatible with the TruVativ while the latter is FSA compatible).
For conspicuous consumption, get a Stella Azzurra crank ...
BTW. A couple of years ago I got a lockring for the current Campagnolo freehub body (it fits MAVIC Campagnolo-compatible freehubs, too) which uses the Shimano cassette tool from EXCEL (Boulder, CO) ... worth the convenience if you work on BOTH types of wheels, but an extravagance.
Also, with regard to the Campagnolo cassette lockring tool, I recommend you either spend the extra money for the Campagnolo cassette tool (~$18US) or track down a LIFU cassette tool (~$5US) rather than getting the Park Tool BBT5 (?) since the Park tool is an unforged casting, whereas the other two are CroMo to the best of my knowledge. I have the Campy tool + a fractured Park tool ... I would have the LIFU variant if it were still available.
With an ALUMINUM frame, you may want/need the 111mm Chorus BB which is designed for the Campagnolo Record/Chorus triple. The chainrings may not clear the stays if you use the 102mm BB which is normally used with the double.